2142044531 has 4 divisors (see below), whose sum is σ = 2336775864. Its totient is φ = 1947313200.

The previous prime is 2142044521. The next prime is 2142044539. The reversal of 2142044531 is 1354402412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2142044531 - 2¹⁰ = 2142043507 is a prime.

It is a super-2 number, since 2×2142044531² = 9176709545574019922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2142044531.

It is not an unprimeable number, because it can be changed into a prime (2142044539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97365650 + ... + 97365671.

It is an arithmetic number, because the mean of its divisors is an integer number (584193966).

Almost surely, 2^2142044531 is an apocalyptic number.

2142044531 is a deficient number, since it is larger than the sum of its proper divisors (194731333).

2142044531 is a wasteful number, since it uses less digits than its factorization.

2142044531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194731332.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 2142044531 is about 46282.2269451244. The cubic root of 2142044531 is about 1289.0690017536.

Adding to 2142044531 its reverse (1354402412), we get a palindrome (3496446943).

The spelling of 2142044531 in words is "two billion, one hundred forty-two million, forty-four thousand, five hundred thirty-one".